28949440

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6959}}^1$

素因数の和:6989

約数の個数: 56

約数和(自身を含む): 74249280

約数和(自身を除く): 45299840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 6959, 13918, 27836, 34795, 55672, 69590, 90467, 111344, 139180, 180934, 222688, 278360, 361868, 445376, 452335, 556720, 723736, 904670, 1113440, 1447472, 1809340, 2226880, 2894944, 3618680, 5789888, 7237360, 14474720, 28949440]

約数ペア:

[(1, 28949440), (2, 14474720), (4, 7237360), (5, 5789888), (8, 3618680), (10, 2894944), (13, 2226880), (16, 1809340), (20, 1447472), (26, 1113440), (32, 904670), (40, 723736), (52, 556720), (64, 452335), (65, 445376), (80, 361868), (104, 278360), (130, 222688), (160, 180934), (208, 139180), (260, 111344), (320, 90467), (416, 69590), (520, 55672), (832, 34795), (1040, 27836), (2080, 13918), (4160, 6959)]